离心压缩机组冷态找正数据的分析与精确计算

针对在安装引进的离心压缩机组中发现的原机组冷态找正数据与实测值不符的情况，介绍了其试验的方法，并提出了一种行之有效的精确计算方法。用该方法计算了该压缩机组的冷态找正数据，并与实测数据作了比较。从而证明该计算方法的可行性及正确性。     

Temperature Induces Self-assembly of Silicon Nano/Micro-structure based on Multi-physics Approach

A three-dimensional dynamic model for nano/micro-fabrications of silicon was presented. With the developed model, the fabrication process of silicon on nothing (SON) structure was quantitatively investigated. We employ a diffuse interface model that incorporates the mechanism of surface diffusion. The mechanism of the fabrication is systematically integrated for high reliability of computational analysis. A semi-implicit Fourier spectral scheme is applied for high efficiency and numerical stability. Moreover, the theoretical analysis provides the guidance that is ordered by the fundamental geometrical design parameters to guide different fabrications of SON structures. The performed simulations suggest a substantial potential of the presented model for a reliable design technology of nano/micro-fabrications.     

运用多维画法几何理论解决线性规划问题

本文用计算机与多维画法几何理论相结合的方法，对地线性规划问题，给出了一种新的解法，文中包括理论述，计算方法，程序设计及计算实例等。     

振动监测在强夯试验中的应用

以工程实例为基础,较深入地探讨了强夯试验中振动监测在确定最大夯击数、划分强夯振动影响范围以及计算地基能量吸收系数等方面的应用。     

对我国油脂深加工的化工产品综述

对我国加速开发植物油脂深加工产品及经济重要性、产品用途、生产工艺等方面作了探讨。介绍了较为成熟的生产工艺,提出了开发生产环氧大豆油、脂肪酸、硬脂酸、甘油、亚油酸、磷脂、糠蜡、植酸钙、肌醇等多种油脂化工产品,创造经济效益的建议。     

矿热炉把持器的传热分析

以矿热炉电极把持器的传热计算为核心,研究把持器的结构设计和参数选用。通过对冷却水流量、壁面厚度、水垢厚度、烟气温度等影响因素的研究,结合把持器传热边界条件,分析了在不同参数条件下传热变化趋势,为电极把持器的设计和应用提供了参考依据。     

压水堆核电厂冷却剂碘同位素活度比值131I/133I与燃料完整性关系研究

压水堆核电厂正常运行期间燃料元件破损会造成一回路裂变产物活度升高,碘同位素活度比值131I/133I是行业内最常用的判断燃料破损情况的指标之一。本文介绍了压水堆正常运行期间冷却剂131I和133I的产生来源和迁移过程,建立模型估算了燃料完整、小破口和大破口情况下131I/133I范围,并通过在运CPR1000型压水堆核电厂的运行监测数据对计算模型进行了验证,两者符合得较好。     

一种数字式光伏阵列模拟系统的研究

针对模拟式光伏阵列模拟器的缺点,提了以光伏电池数学模犁为基础,由直流斩波器构成的数字式光伏阵列模拟器.该模拟器可以模拟任意太阳辐射强度、环境温度的光伏阵列1-V特性.实验结果证明该模拟器的输出特性非常接近实际情况,并且动态响应良好.     

东莞运河生态重建初探

广东东莞运河是目前国内污染最为严重的河流之一。运河的生态重建不仅可改善东莞人民的生活环境,而且会对我国类似河流的水体修复提供经验。本文分析了东莞运河水生环境恶化的原因,提出东莞运河的生态重建应在市政府的统一领导下,由多专业多部门协同工作,按照“截污-清淤-活源-治堤”的思路,一次规划,分期实施,最终实现东莞运河水环境优良的目标。     

Biomimetic Robust Starch Composite Films with Super-Hydrophobicity and Vivid Structural Colors

The starch composite films (SCFs) will be one of the best alternative packaging materials to petroleum based plastic films, which mitigates white pollution and energy consumption. However, weak mechanical stability, water resistance, and dyeability has hindered the application of SCFs. Herein, a bioinspired robust SCFs with super-hydrophobicity and excellent structural colors were prepared by fiber-reinforcement and assembling SiO₂/Polydimethylsiloxane (PDMS) amorphous arrays on the surface of SCFs. The properties of the designed SCFs were investigated by various methods including scanning electron microscope (SEM), Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermo-gravimetric analysis (TGA), a tensile test, contact angle (CA) test, and an optical test. The results showed that the obtained SCFs possessed a higher tensile strength (55.17 MPa) attributed to the formed abundant hydrogen bonds between the molecular chains of the starch, cellulose fiber, and polyvinyl alcohol. Benefiting from the nanostructure with rough surface which were modified by materials with low surface free energy, the contact angle and sliding angle of the film reached up to 154° and 2°, respectively. The colors which were produced by the constructive interference of the coherent scattered light could cover all of the visible regions by tuning the diameters of the SiO₂ nanoparticles. The strategy in the present study not only reinforces the mechanical strength and water resistance of SCFs but also provides an environmentally friendly way to color the them, which shows unprecedented application potential in packaging materials of the starch composite films.